Solve the problem.A computer firm markets two kinds of electronic calculator that compete with one another. The total revenue function is 
where p is the price of the first calculator (in multiples of $10), and q is the price of the second calculator (in multiples of $10). What prices should be charged in order to maximize the total revenue?
A. $15 and $155
B. $20 and $120
C. $40 and $170
D. $5 and $90
Answer: A
Mathematics
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, 1, 
, 2
A. 
B. 
C. 
D. 
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Divide.2.25 ÷ (-3)
A. -0.75 B. -17.5 C. -7.5 D. -1.75
Mathematics
Graph the pair of parametric equations by hand, using values of t in [-2,2]. Make a table of t-, x-, and y-values, using t = -2, -1, 0, 1, and 2. Then plot the points and join them with a line or smooth curve for all values of t in [-2,2]. Do not use a calculator.x = t + 1, y = t2 + 2
What will be an ideal response?
Mathematics
Solve the equation.x - 5 = 
A. 10 B. 10, 3 C. 5 D. no solution
Mathematics